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Author neologix
Recipients Trundle, abacabadabacaba, benhoyt, brian.curtin, christian.heimes, eric.araujo, giampaolo.rodola, gregory.p.smith, loewis, ncoghlan, neologix, nvetoshkin, pitrou, rhettinger, serhiy.storchaka, socketpair, terry.reedy, tim.golden, torsten, twouters, vstinner
Date 2013-05-05.08:31:03
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> I'd slightly prefer the name iterdir_stat(), as that almost makes the (name, stat) return values explicit in the name. But that's kind of bikeshedding -- scandir() works too.

I find iterdir_stat() ugly :-)
I like the scandir name, which has some precedent with POSIX.

> That's right: if we have a separate scandir() that returns (name, stat) tuples, then a plain iterdir() is pretty much unnecessary -- callers just ignore the second stat value if they don't care about it.

Hum, wait.
scandir() cannot return (name, stat), because on POSIX, readdir() only
returns d_name and d_type (the type of the entry): to return a stat,
we would have to call stat() on each entry, which would defeat the
performance gain.
And that's the problem with scandir: it's not portable. Depending on
the OS/file system, you could very well get DT_UNKNOWN (and on Linux,
since it uses an adaptive heuristic for NFS filesystem, you could have
some entries with a resolved d_type and some others with DT_UNKNOWN,
on the same directory stream).

That's why scandir would be a rather low-level call, whose main user
would be walkdir, which only needs to know the entry time and not the
whole stat result.

Also, I don't know which information is returned by the readdir
equivalent on Windows, but if we want a consistent API, we have to
somehow map d_type and Windows's returned type to a common type, like
DT_FILE, DT_DIRECTORY, etc (which could be an enum).

The other approach would be to return a dummy stat object with only
st_mode set, but that would be kind of a hack to return a dummy stat
result with only part of the attributes set (some people will get
bitten by this).
Date User Action Args
2013-05-05 08:31:03neologixsetrecipients: + neologix, loewis, twouters, rhettinger, terry.reedy, gregory.p.smith, ncoghlan, pitrou, vstinner, giampaolo.rodola, christian.heimes, tim.golden, eric.araujo, Trundle, brian.curtin, benhoyt, torsten, nvetoshkin, abacabadabacaba, socketpair, serhiy.storchaka
2013-05-05 08:31:03neologixlinkissue11406 messages
2013-05-05 08:31:03neologixcreate